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TLL CH 8
THE NERVOUS SYSTEM
| Question | Answer |
|---|---|
| FUNCTIONS OF THE NERVOUS SYSTEM | 1.DETECT CHANGES AND FEEL SENSATION2. INITIATE APPROPRIATE RESPONSE TO CHANGE3. ORGANIZE INFO FOR IMMEDIATE USE AND STORE FOR FUTURE USE |
| PERIPHERAL NERVOUS SYSTEM | CRANIAL AND SPINAL NERVES THAT RELAY INFO |
| CENTRAL NERVOUS SYSTEM (CNS) | BRAIN (PROCESSES INFO) AND SPINAL CORD |
| AUTONOMIC NERVOUS SYSTEM | 1. SYMPATHETIC (FIGHT OF FLIGHT)2. PARASYMPATHETIC (FEED AND BREED) |
| SYMPATHETIC NERVOUS SYSTEM | *PREPARE FOR FIGHT OR FLIGHT*HR INCREASE*BRONCHIOLES DILATE*PUPILS DILATE*LIVER PRODUCES GLUCOSE FOR ENGERY*INCREASE BLOOD SUPPLY TO MUSCLES*DECREASE PERISTALSIS* |
| PARASYMPATHETIC NERVOUS SYSTEM | *REST AND DIGEST*RETURN TO NORMAL NON-STRESSFUL SITUATIONS*PUPILS CONSTRICT*DIGESTIVE SYSTEM DIGESTS FOOD*BRONCHIOLES GO BACK TO NORMAL SIZE*HR DECREASE* |
| SCHWANN CELLS | MAKE UP THE SCHWANN CELL MEMBRANE (COVERS CELLS) |
| MYELIN SHEATH | COVERING AROUND THE NERVE FIBER RESPONSIBLE FOR TRANSMITTING THE IMPULSE |
| SYNAPSES | FIBERS DO NOT TOUCH ONE ANOTHER. SMALL SPACE BETWEEN NERVE FIBERS IS THE SYNAPSES OR SYNAPTIC GAP |
| NEUROTRANSMITTERS | CHEMICALS THAT TRANSMIT A ONE-WAY CHEMICAL MESSAGE ACROSS THE SYNAPTIC GAP |
| INACTIVATORS | INACTIVATES THE NEUROTRANSMITTER TO KEEP FROM BUILDING UP EXCESS (CHOLERESTERASE) |
| AFFERENT (TYPE OF NEURON) | TRANSMIT SENSORY INFO TOWARD THE CNS |
| EFFERENT (TYPE OF NEURON) | TRANSMIT MOTOR INFO FROM THE CNS (SEND OUT) |
| NERVE IMPULSE | SAME AS WITH MUSCLE FIBERS NA+ AND K+ |
| POLARIZATION | NA+ AND OTHER (+) ON OUTSIDE/K+ AND OTHER (-) ON INSIDE. (-) ON INSIDE RESTING PHASE |
| DEPOLARIZATION | (+) ON INSIDE. NA+ RUSHES IN WORKING PHASE |
| SPINAL CORD | *TRANSMITS INFO TO AND FROM THE BRAIN*ENDS BETWEEN THE 1ST AND 2ND LUMBAR VERTEBRA |
| BRAIN STEM | PRIMARY CONTROL OF HR, RESPIRATIONS/////MEDULLA*PONS*MID BRAIN* |
| CEREBELLUM | MOVEMENT OF MUSCLES, BALANCE, MUSCLE TONE AND COORDINATION |
| HYPOTHALAMUS | REGULATION OF BODY TEMP AND SECRETION OF HORMONES |
| CEREBRUM | LARGEST SECTION-DIVIDED INTO LOBES |
| FRONTAL | VOLUNTARY MUSCLE AND SPEAKING (MAINLY LEFT SIDE) |
| PARIETAL | SKIN SENSATION-MUSCLE SENSE |
| TEMPORAL AUDITORY CENTER | HEARING |
| OLFACTORY | TASTE AND SMELL |
| OCCIPITAL | VISUAL CENTER |
| MENINGES | COVRING OF CONNECTIVE TISSUE-IS THE MEMBRANES |
| DURA MATER | LINES THE SKULL AND VERTEBRAL COLUMN |
| PIA MATER | INNER LINING |
| CEREBROSPINAL FLUID | (AKA CSF) MADE FROM BLOOD PLASMA BY THE CHOROID PLEXUS (CAPILLARIES) IN THE VENTRICLES (DEEP PART) OF THE BRAIN**PROVIDES NUTRIENTS*PROVIDES CUSHION* IS A SHOCK ABSORBER* |
| 1. I OLFACTORY | SENSE OF SMELL |
| 2. II OPTIC | SENSE OF SIGHT |
| 3. III OCULOMOTOR | MOVEMENT OF THE EYEBALL;CONSTRICTION OF PUPIL IN BRIGHT LIGHT OR FOR NEAR VISION |
| 4. IV TROCHLER | MOVEMENT OF THE EYEBALL |
| 5. V TRIGEMINAL | SENSATION IN FACE, SCALP, AND TEETH; CONTRACTION OF CHEWING MUSCLES |
| 6. VI ABDUCENS | MOVEMENT OF THE EYEBALL |
| 7. VII FACIAL | SENSE OF TASTE;CONTRACTION OF FACIAL MUSCLES;SECRECTION OF SALIVA |
| 8. VIII ACOUSTIC(VESTIBULOCOCHLEAR) | SENSE OF HEARING; SENSE OF EQUILIBRIUM |
| 9. IX GLOSSOPHARYNGEAL | SENSE OF TASTE;SENSORY FOR CARDIAC RESPIRATORY, AND BLOOD PRESSURE REFLEXES;CONTRACTION OF PHARYNX;SECRETION OF SALIVA |
| 10. X VAGUS | SENSORY IN CARDIAC, RESPIRATORY, AND BLOOD PRESSURE REFLEXES;SENSORY AND MOTOR TO LARYNX (SPEAKING); DECREASE HEART RATE; CONTRACTION OF ALIMENTARY TUBE (PERISTALSIS);INCREASE DIGESTIVE SECRECTIONS |
| 11. XI ACCESSORY | CONTRACTION OF NECK AND SHOULDER MUSCLES;MOTOR TO LARYNX (SPEAKING) |
| 12. XII HYPOGLOSSAL | MOVEMENT OF THE TOUGUE |
| THALAMUS | SENSATIONS |
Created by:
TERRI LUCKETT
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